Examine source code of Codeforces Solutions

{
  "manifest_version": 2,
  "name": "Codeforces Solutions",
  "version": "0.2",
  "content_scripts": [
    {
      "matches": [
        "https://codeforces.com/*",
        "http://codeforces.com/*"
      ],
      "js": [
        "jquery-3.5.0.min.js",
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d8cfb235-9cd8-453a-b309-51cc353191f1}"
    }
  }
}